28 IPHIAULAX AND CHAOLTA. 



Temples longer than antenna 1 scape, broadly rounded behind ; 

 occiput not quite transverse. Face strongly and closely punctur- 

 ed ; its centre raised, roundly narrowed above, more shining 

 and more widely punctured. Clypeus clearly separated by a 

 furrow from the face, smooth, except for a transverse row of 

 large punctures in the middle. Palpi and mandibles rufo-testa- 

 ceous, the latter black at apex. Thorax smooth ; the middle 

 lobe of mesonotum clearly separated ; metanotum covered with 

 pale hair, punctured, its apex blackish and obscurely punctured. 

 Basal segment of abdomen raised in the middle ; the sides 

 stoutly keeled ; and there is a stout keel down the centre ; 2nd., 

 3rd. and 4th. segments closelv, strongly, longitudinally striated ; 

 the apices of the 3rd. and 4th. smooth ; the base of 5th. finely 

 striated ; the area on the base of 2nd. segment becomes gradual- 

 ly narrowed into the keel which reaches to the basal third of 

 the segment ; it is bordered by 2 oblique keels which form a 

 large, somewhat triangular area, which is irregularly reticulat- 

 ed on the inner side and irregularly longitudinally striated on 

 outer ; the lateral depression stoutly, closely, obliquely striated ; 

 the sides of the 3rd. segments are depressed and less closely 

 punctured. 



Iphiaulax cyrenius, sp. nov. 



Black ; the 4 front legs, head, pro- and mesothorax and 

 lower half of metapleurte rufous ; wings fuscous-violaceous, 

 the nervures and stigma black ; fore tarsi more than twice 

 the length of tibiee, their basal 2 joints being longer than the 

 latter ; basal plate of 2nd. abdominal segment small, roundly, 

 gradually narrowed to the apex and with a smaller, smooth, 

 triangular plate on either side ; the keel extends to the apex, 

 where it ends in a small, broader than long, plate. 9 . 



Length 13-14 mm. ; terebra 13 mm. 



Bab. Kuching. December. 



Face smooth and shining in the centre, the centre being flat, 

 bell-shaped ; the sides punctured ; the sides and clypeus covered 

 with long blackish hair. Ocelli enclosed by a U shaped furrow, 

 from which a furrow runs to the base of antennae. Temples 

 longer than the scape of antennae, rounded behind ; the occiput 

 roundly incised. Scape of antennae thick about 3 times louger 



Jour. Straits Branch 



